The PH-310 handset from C3Tech is perfect for voice calls, webinars and more. With a plug-and-play USB-A connection, just plug it into your computer and you're ready to chat. With built-in control and a longer cable for more freedom during long calls.

 Details:
 Speaker: F40mm
 Impedance: 20O 15%
 Frequency response: 20Hz-20 kHz
 Rated power: 25mw
 Maximum input power: 50mw
 Sensitivity: -55db 2db
 Cable length: 2.10m +/- 5%
 USB 2.0 connection
 Microphone dimension: F6.0 * 5.0 mm
 Directivity: noise cancellation
 Cable with volume increase, decrease, mute. Mic ON / OFF